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The temperature of the upper 300 m of the North Atlantic increased by about 0.57°C between 1984 and 1999. but this underlying trend was overlain with substantial geographic and interannual variability. Nor thward shifts occurred in the distribution of many commercial and non-commercial fish species in the NE Atlantic during the 1990s. New records were established for a number of Mediterranean and NW African species on the south coast of Portugal. Red mullet (Mullus surmuletus) and bass (Dicentrarchus labrax) extended their ranges northward to western Norway and catches of the former increased throughout the 1990s in the North Sea. Abundance or relative abundance o f warm-water commercial species of gadoids and flatfish generally increased during the 1990s, but like the warming trend the changes in distribution and abundance were by no means uniform and there was considerable interannual variability. There were also examples o f southward shifts lor some species, which can be related to local hydrographic conditions, such as upwelling. Information on distribution and abundance of Greenland cod (Gadus morhua L.) and Norwegian springspawning herring (Clupea harengus) during a previous warming period in the late 1920s and 1930s is also presented and compared with changes in the 1990s. Article from Marine Science Symposia Vol. 219 - "Hydrobiological variability in the ICES Area, 1990-1999", symposium held in Edinburgh, 8-10 August 2001. To access the remaining articles please click on the keyword "MSS Vol. 219".

Made available in DSpace on 2018-08-01T22:56:18Z (GMT). No. of bitstreams: 1 tese_10518_TeseHelderMendes2016.pdf: 19226190 bytes, checksum: e8a7d9105e382eeca3144d81527a120b (MD5) Previous issue date: 2016-12-19 Neste trabalho, foi proposta uma ferramenta de calibração automática para o modelo Distributed Hydrology Soil Vegetation Model. O princípio básico do calibrador implementado é a utilização da meta-heurística Clustering Search (CS), que permite a obtenção, além da solução calibrada, de um conjunto de soluções sub-ótimas resultantes do processo. Essas soluções são utilizadas para a verificação da possibilidade de melhoria da calibração de uma sub-bacia por meio da aplicação das soluções obtidas para um conjunto de outras sub-bacias. A ferramenta e a metodologia de combinação proposta foram aplicadas na calibração de uma bacia hidrográfica da região sudeste do Brasil, formada por um conjunto de sub-bacias cujas vazões são monitoradas. Os resultados obtidos mostram que tanto a ferramenta quanto a metodologia de combinação propostas são eficientes, levando a uma melhoria considerável dos resultados da modelagem para a bacia. Palavras-chave: modelagem hidrológica. calibração. heurísticas.

The Workshop on Long‐term Variability in Southwestern Europe (WKLTVSWE) was held in Lisbon, Portugal from 13 to 16 February 2007, a joint effort of ICES and GLOBEC and endorsed by EUR‐OCEANS (http://www.eur‐oceans.org). In 1997, GLOBEC’s SPACC (Small Pelagic Fish and Climate Change) initiative held a joint meeting with SCOR Working Group 98 on worldwide, large‐scale fluctuations in sardine (Sardinops sagax) and anchovy (Engraulis spp.) populations (Schwartzlose et al., 1999). It was decided then to continue this “global” undertaking with a series of regional workshops. Previous meetings had focused on the Benguela Current in 2001 (Cury and Shannon, 2004), the Humboldt Current in 2002 (Alheit and Niquen, 2004), and Japanese waters in 2003. During the 2005 annual meeting of the former ICES Study Group on Regional Ecology of Small Pelagics (SGRESP) – subsequently ICES/GLOBEC Working Group on Life Cycle and Ecology of Small Pelagic Fish (WGLESP) – it was recommended that this series of workshops be continued with a meeting focusing on the waters surrounding the Iberian Peninsula, including the western Mediterranean Sea., 0

Mendes, H. F., Saether, O. A., Andrade-Morraye, M. (2005): Gynocladius scalpellosus n. gen., n. sp. from Brazil (Diptera: Chironomidae: Orthocladiinae). Zootaxa 979: 1-12, DOI: 10.5281/zenodo.171353

Gynocladius scalpellosus sp. n. (Figs. 2���4) Type material: Holotype female with larval and pupal exuviae: BRAZIL: S��o Paulo State, Guapiara city, Parque Estadual Intervales, Lajeado de Cima, temporary pool, 24 �� 16 ��� 43 ��� S; 48 �� 26 ��� 32 ��� W, 820 m. a.s.l. 29.IV. 2001, reared from larva, M. A. Morraye (MZUSP) Paratypes: 1 female with larval and pupal skin; 1 female with larval skin; 3 females: same data as holotype (ZMBN). Additional material: 3 larvae and one female with larval and pupal skins, same data as holotype. Diagnostic characters: See generic diagnosis. Etymology: From Latin scalpellum, surgical knife, and �� osus, full of, referring to the scalpellate acrostichals. Female (n = 3, except when otherwise stated). Total length 1.29���1.34 mm. Wing length 0.82���0.91 mm. Total length/wing length 1.45���1.64. Wing length/length of profemur 2.43���2.47. Coloration: uniformly dark yellow, antennae and tarsi greyish. Head. Flagellomeres length (in ��m): 64���66; 27���41; 43���46; 25���37; 55. Pedicel 34���37 ��m long, 48���50 ��m wide. Temporal setae 7���8; including 2 inner verticals; 3 outer verticals; and 2���3 postorbitals. Clypeus with 16���20 setae. Tentorium, stipes, and cibarial pump as in Fig. 2 B. Tentorium 87���96 ��m long; 7���10 ��m wide. Stipes 87 ��m long; 27 ��m wide (1). Palpomere lengths (in ��m): 16���18; 20���25; 46���48; 48; 80���89. Third palpomere with 1���3 non��grouped sensilla clavata in apical one��third, 14���17 ��m long. Thorax (Fig. 2 A). Antepronotum with 4���8 setae. Acrostichals 7���13 scalpellate, plus 2 anterior simple; dorsocentrals 12���26, starting close to antepronotum; prealars 3���5. Scutellum with 6���9 setae. Wing (Fig. 2 C). VR 1.38���1.41. C extension 94���115 ��m long. Brachiolum with 1 seta; C extension with 15���25 non���marginal setae; R with 11���13 setae; R 1 with 11���25; R 4 + 5 with 20���22; M bare; M 1 + 2 with 28���29; M 3 + 4 with 14���15; Cu with 11���13; Cu 1 with 7���9; Pcu 7��� 12 and An with 13���15. Cell r 4 + 5 with 52���68 setae; m with 10���15; m 1 + 2 with 106���128; m 3 + 4 with 37; cu with 8���17 setae; an with 96���99. Legs. Spur of front tibia 20���22 ��m long; spurs of middle tibia 14���16 ��m and 18���27 ��m long; spurs of hind tibia 15���16 ��m and 27���30 ��m long. Width at apex of front tibia 20���22 ��m; of middle tibia 22���25 ��m; of hind tibia 27���32 ��m. Comb with 8���10 setae, longest 22���27 ��m and shortest 14���20 ��m. Lengths and proportions of legs as follows (n = 1���2): Genitalia (Fig. 2 D���G, n = 1). Sternite VIII with 14 setae. Gonocoxite with 12 setae. Tergite IX undivided, with about 18 setae. Cercus 37 ��m long, 16 ��m wide. Seminal capsule 59 ��m long, including 21 ��m long neck, maximum width 34 ��m. Spermathecal ducts straight for most of distance, but with loops close to seminal capsule. Notum 147 ��m long. Pupa (n = 2). Total length 2.19 mm (1). Exuviae pale, nearly transparent. Cephalothorax (1) (Fig. 3 A). Frontal apotome smooth. Ocular field apparently with 2 postorbitals, each approximately 16 ��m long. Antennal sheath smooth. Two median antepronotals 25 and 15 ��m long, respectively, one lateral antepronotal 35 ��m long. Precorneals as in Fig. 3 A, each 25, 22, and 16 ��m long, respectively, all grouped together. Dorsocentrals each approximately 12 ��m long, prealar 34 ��m long. Abdomen (Fig. 3 B). Numbers of caudal spines on tergites II���VIII as follows: 13���17; 18���20; 20���23; 20���24; 21���25; 18���21; 9���15. Length (in ��m) of the longest caudal spine on tergites II���VIII (in ��m) as follows: 11���13; 9���13; 13���16; 16 ��� 14; 16; 13; 11. Anal lobe (Fig 3 C) 153���157 ��m long, with 3 macrosetae, respectively 71 ���76, 80��� 82, and 89���92 ��m long. Distance from apex of genital sac to apex of anal lobe 41���46 ��m. Larva (n = 1���2) fourth instar. Head capsule 227���245 ��m long. Postmentum 48���53 ��m long. Colour of thoracic segments brown, head and abdomen amber yellow. Head. Antenna as in Fig. 4 A; segment lengths in ��m: 23, 9, 3, 7, 3. Blade 34 ��m long, longer than flagellum; apical style of second segment 5 ��m long. Seta I plumose (Fig. 4 B), other setae simple. Premandible as in Fig. 4 C, 30���34 ��m long. Mandible (Fig. 4 D) 71���74 ��m long, with apical tooth and four inner teeth, fourth tooth fused with mola; seta subdentalis slender; seta interna with four branches. Mentum (Fig. 4 E) 53���55 ��m wide, with irregular, 7���9 ��m long median tooth, and five lateral teeth. Abdomen without distinct setae. Anterior parapods fused, with numerous claws, all simple; posterior parapods not measurable. Supraanal seta approximately 46 ��m (1) long. Procerci 7 ��m wide, 7 ��m long; with 4 setae, shortest 50 ��m long, longest 71 ��m long. Anal tubules not measurable., Published as part of Mendes, H. F., Saether, O. A. & Andrade-Morraye, M., 2005, Gynocladius scalpellosus n. gen., n. sp. from Brazil (Diptera: Chironomidae: Orthocladiinae), pp. 1-12 in Zootaxa 979 on pages 6-10, DOI: 10.5281/zenodo.171353

Gynocladius new genus Type species: Gynocladius scalpellosus new species, by present designation. Diagnostic characters: The female imagines are separable from all other known orthoclads by the combination of hairy wings with bare squama; straight Cu 1 and strongly extended costa; scutum with median group of strongly scalpellate acrostichals; gonapophysis VIII with well developed, brush��like ventrolateral lobe and large dorsomesal lobe; tergite IX undivided; and seminal capsules large with strongly sclerotised, triangular neck. The pupa is distinguished by lacking thoracic horns and anal lobe fringe; spines present posteriorly on tergites II���VIII and sternites III(IV)���VII; and subequal macrosetae on spined tubercles about half as long as the anal lobe. The larva has plumose S I; premandible with 3 apical teeth; 5 ��segmented antenna with blade much longer than flagellum; mentum with single median tooth, 5 pairs of lateral teeth and reduced ventromental plates; and minute procerci with reduced anal setae. Etymology: From Greek gyne, meaning female, referring to the parthenogenesis, and ���cladius���, a common ending among orthoclads. Female imago: Small species; wing length about 0.9 mm. Eye bare, rounded, no dorsomedian elongation. Antenna with 5 flagellomeres and long, simple sensilla chaeticae on each, without stiff apical seta. Palpomeres well developed; third palpomere with 1 lanceolate sensilla clavata. Temporals consisting of few inner and outer verticals and postorbitals. Tentorium very narrow. Cibarial pump with concave anterior margin and strongly diverging cornua. Clypeus broad, with numerous setae. Antepronotal lobes collar��like, slightly narrowed medially, with few lateral setae. About 8 short median, distinctly scalpellate acrostichals; several dorsocentrals, uni��biserial anteriorly, uniserial posteriorly; few prealars; supraalar absent. Scutellum with few transversely uniserial setae. Wing without anal lobe; all cells with setae, with fine punctation; costa strongly extended, reaching near apex of wing; R 4 + 5 ending distal to apex of M 3 + 4; R 2 + 3 ending in middle between R 1 and R 4 + 5; VR about 1.4; Cu 1 straight; postcubitus ending far distal to cubital fork; anal vein ending beyond cubital fork. Brachiolum with 1 seta, subcosta bare, other veins with numerous setae. Squama bare. Sensilla campaniformia about 8 basally and 8 apically on brachiolum, 3 below setae on brachiolum; 1 present basally on subcosta, and 1 on RM. Front leg ratio about 0.7. Spurs well developed; hind tibial comb normally developed. Pseudospurs absent, sensilla chaeticae not observed. Pulvilli absent. Tergites with few median and lateral setae. Female genitalia with well developed gonocoxite with several short and several long setae. Coxosternapodeme straight laterally, curved medially, connected basal of vagina. Tergite IX undivided, with several setae. Postgenital plate triangular. Cercus of moderate size. Gonapophysis VIII divided into brush��like ventrolateral lobe and large dorsomedian lobe. Apodeme lobe relatively conspicuous. Seminal capsules larger than cerci, ovoid, pale anteriorly, with very large, triangular, dark sclerotised neck. Spermathecal ducts curved close to seminal capsule and common opening. Labia without microtrichiae. Pupa: Small, about 1.5 mm long. Exuviae nearly transparent with anal lobe projections slightly darkened. Cephalothorax. Frontal setae absent. Cephalic area smooth. Ocular field apparently with two postorbitals. Two median antepronotals and one lateral antepronotal. Thoracic horn absent, 3 precorneals, apparently three dorsocentrals, not grouped. Wing sheath smooth, without pearls or nose. Abdomen. Tergite I with single caudal row of weak spines, tergites II���IX and sternites III���VIII with extensive shagreen. Conjunctives with small spines. Tergite II without caudal hooklets. Tergites II���VIII with single caudal row of spines, no caudal spines on sternites. Pedes spurii A and B absent. Segments II���VIII apparently with 2 L��setae. D, V and O setae present, but weak. Anal lobe with 3 subequal macrosetae about half as long as anal lobe and situated on spined tubercles. Genital sac of female rounded, not reaching apex of anal lobe. Larva: Small, about 2.6 mm long. Antenna with 5 segments, basal segment longer than flagellum; third antennal segment much shorter than fourth. Basal antennal segment nearly 3 times as long as basal width, with ring organ situated just below middle. Lauterborn organs weak, about as long as the short third segment, style well developed. Blade much longer than flagellum, accessory blade about as long as second segment. S I plumose. Other S setae simple. Labral lamella apparently absent. Few spinulae and chaetae. Pecten epipharyngis consisting of 3 pointed teeth. Chaetulae laterales and chaetulae basales apparently simple. Premandible with 3 apical teeth, with third about half as long as 2 apical; without brush. Mandible with apical tooth slightly shorter than combined width of first 3 of 4 inner teeth. Fourth tooth fused with mola. Seta subdentalis slightly curved, seta interna with 4���7 branches, longer branches pectinate or plumose. Mentum with 1 median tooth and 5 pairs of lateral teeth of which outer 2 teeth slightly smaller. Ventromental plates inconspicuous, beard absent. Setae submenti just below base of outer lateral tooth of mentum. Maxilla and maxillary palp apparently normally developed. Anterior and posterior parapods well developed; longer claws of anterior parapods with few apical distinct inner teeth. Procercus minute with only about 4 short anal setae, supraanal seta relatively well developed. Anal tubules well developed, digitiform, about as long as posterior parapods., Published as part of Mendes, H. F., Saether, O. A. & Andrade-Morraye, M., 2005, Gynocladius scalpellosus n. gen., n. sp. from Brazil (Diptera: Chironomidae: Orthocladiinae), pp. 1-12 in Zootaxa 979 on pages 2-4, DOI: 10.5281/zenodo.171353

Gynocladius scalpellosus sp. n. (Figs. 2–4) Type material: Holotype female with larval and pupal exuviae: BRAZIL: São Paulo State, Guapiara city, Parque Estadual Intervales, Lajeado de Cima, temporary pool, 24 º 16 ’ 43 ” S; 48 º 26 ’ 32 ” W, 820 m. a.s.l. 29.IV. 2001, reared from larva, M. A. Morraye (MZUSP) Paratypes: 1 female with larval and pupal skin; 1 female with larval skin; 3 females: same data as holotype (ZMBN). Additional material: 3 larvae and one female with larval and pupal skins, same data as holotype. Diagnostic characters: See generic diagnosis. Etymology: From Latin scalpellum, surgical knife, and ­ osus, full of, referring to the scalpellate acrostichals. Female (n = 3, except when otherwise stated). Total length 1.29–1.34 mm. Wing length 0.82–0.91 mm. Total length/wing length 1.45–1.64. Wing length/length of profemur 2.43–2.47. Coloration: uniformly dark yellow, antennae and tarsi greyish. Head. Flagellomeres length (in µm): 64–66; 27–41; 43–46; 25–37; 55. Pedicel 34–37 µm long, 48–50 µm wide. Temporal setae 7–8; including 2 inner verticals; 3 outer verticals; and 2–3 postorbitals. Clypeus with 16–20 setae. Tentorium, stipes, and cibarial pump as in Fig. 2 B. Tentorium 87–96 µm long; 7–10 µm wide. Stipes 87 µm long; 27 µm wide (1). Palpomere lengths (in µm): 16–18; 20–25; 46–48; 48; 80–89. Third palpomere with 1–3 non­grouped sensilla clavata in apical one­third, 14–17 µm long. Thorax (Fig. 2 A). Antepronotum with 4–8 setae. Acrostichals 7–13 scalpellate, plus 2 anterior simple; dorsocentrals 12–26, starting close to antepronotum; prealars 3–5. Scutellum with 6–9 setae. Wing (Fig. 2 C). VR 1.38–1.41. C extension 94–115 µm long. Brachiolum with 1 seta; C extension with 15–25 non–marginal setae; R with 11–13 setae; R 1 with 11–25; R 4 + 5 with 20–22; M bare; M 1 + 2 with 28–29; M 3 + 4 with 14–15; Cu with 11–13; Cu 1 with 7–9; Pcu 7– 12 and An with 13–15. Cell r 4 + 5 with 52–68 setae; m with 10–15; m 1 + 2 with 106–128; m 3 + 4 with 37; cu with 8–17 setae; an with 96–99. Legs. Spur of front tibia 20–22 µm long; spurs of middle tibia 14–16 µm and 18–27 µm long; spurs of hind tibia 15–16 µm and 27–30 µm long. Width at apex of front tibia 20–22 µm; of middle tibia 22–25 µm; of hind tibia 27–32 µm. Comb with 8–10 setae, longest 22–27 µm and shortest 14–20 µm. Lengths and proportions of legs as follows (n = 1–2): Genitalia (Fig. 2 D–G, n = 1). Sternite VIII with 14 setae. Gonocoxite with 12 setae. Tergite IX undivided, with about 18 setae. Cercus 37 µm long, 16 µm wide. Seminal capsule 59 µm long, including 21 µm long neck, maximum width 34 µm. Spermathecal ducts straight for most of distance, but with loops close to seminal capsule. Notum 147 µm long. Pupa (n = 2). Total length 2.19 mm (1). Exuviae pale, nearly transparent. Cephalothorax (1) (Fig. 3 A). Frontal apotome smooth. Ocular field apparently with 2 postorbitals, each approximately 16 µm long. Antennal sheath smooth. Two median antepronotals 25 and 15 µm long, respectively, one lateral antepronotal 35 µm long. Precorneals as in Fig. 3 A, each 25, 22, and 16 µm long, respectively, all grouped together. Dorsocentrals each approximately 12 µm long, prealar 34 µm long. Abdomen (Fig. 3 B). Numbers of caudal spines on tergites II–VIII as follows: 13–17; 18–20; 20–23; 20–24; 21–25; 18–21; 9–15. Length (in µm) of the longest caudal spine on tergites II–VIII (in µm) as follows: 11–13; 9–13; 13–16; 16 – 14; 16; 13; 11. Anal lobe (Fig 3 C) 153–157 µm long, with 3 macrosetae, respectively 71 –76, 80– 82, and 89–92 µm long. Distance from apex of genital sac to apex of anal lobe 41–46 µm. Larva (n = 1–2) fourth instar. Head capsule 227–245 µm long. Postmentum 48–53 µm long. Colour of thoracic segments brown, head and abdomen amber yellow. Head. Antenna as in Fig. 4 A; segment lengths in µm: 23, 9, 3, 7, 3. Blade 34 µm long, longer than flagellum; apical style of second segment 5 µm long. Seta I plumose (Fig. 4 B), other setae simple. Premandible as in Fig. 4 C, 30–34 µm long. Mandible (Fig. 4 D) 71–74 µm long, with apical tooth and four inner teeth, fourth tooth fused with mola; seta subdentalis slender; seta interna with four branches. Mentum (Fig. 4 E) 53–55 µm wide, with irregular, 7–9 µm long median tooth, and five lateral teeth. Abdomen without distinct setae. Anterior parapods fused, with numerous claws, all simple; posterior parapods not measurable. Supraanal seta approximately 46 µm (1) long. Procerci 7 µm wide, 7 µm long; with 4 setae, shortest 50 µm long, longest 71 µm long. Anal tubules not measurable.

n/a

Made available in DSpace on 2019-04-06T02:09:38Z (GMT). No. of bitstreams: 1 tese_12042_dissertação.pdf: 1128859 bytes, checksum: 8523fe860aa709a8bb096bf2e32a424a (MD5) Previous issue date: 2019-02-22 Este trabalho propõe a aplicação de duas meta-heurísticas para otimizar uma rede de trocadores de calor. Essa rede consiste em diferentes combinações de trocadores de calor entre as correntes presentes no processo, potencializando seu efeito. Neste trabalho, foram considerados dois casos distintos para uma rede em que se permite ou não a divisão não-equivalente de corrente e mistura entre estágios. Apesar da existência de diversas meta-heurísticas, algumas consideradas clássicas não têm sido amplamente aplicadas para esse tipo de problema. Assim, neste trabalho propõe-se um algoritmo Simulated Annealing e um algoritmo GRASP para otimizar os dois casos de uma rede de trocadores de calor. Ambos os algoritmos se mostraram capazes de obter boas soluções para os dois casos em pouco tempo computacional. Para o primeiro caso, uma comparação direta com um trabalho apresentado na literatura foi realizada, e soluções similares às melhores conhecidas até então foram obtidas em um tempo computacional consideravelmente menor. Já para o segundo caso, não foi realizada comparação direta com a literatura devido à inexistência de trabalhos que tratassem a rede com as mesmas características. Entretanto, as soluções obtidas demonstraram a possibilidade de um ganho considerável quando se utiliza a divisão e mistura de correntes na rede. Os valores das melhores soluções obtidas são apresentados para futuras comparações.

Made available in DSpace on 2018-12-20T13:23:39Z (GMT). No. of bitstreams: 1 tese_9644_Marlla de OIliveira Hot.PDF: 54 bytes, checksum: 5ee36ceb3253f27951cf4c2e7e3d8ba4 (MD5) Previous issue date: 2018-09-28 A utilização de rede de sensores sem fio (RSSF) tem se mostrado uma tecnologia eficiente e promissora para o uso racional da água, possibilitando o monitoramento remoto do teor de água no solo. A obtenção de dados de umidade atualizados contribui para aumentar a eficiência no uso da água, prevenindo o excesso e o déficit hídrico, proporcionando incremento em produtividade, além de reduzir impactos ambientais associados à irrigação. Com a realização desta pesquisa, objetivou-se implementar uma RSSF utilizando equipamentos de baixo custo, com capacidade de se comunicar com aparelho celular para informar ao usuário sobre a umidade atual do solo. A RSSF foi implementada em laboratório e posteriormente teve o desempenho avaliado em laboratório e em campo cultivado com cafeeiro Conilon. Foram ajustadas curvas de calibração para quatro modelos de sensor de umidade do solo, os quais foram avaliados visando selecionar os que seriam utilizados para analisar o desempenho da RSSF no monitoramento da umidade do solo. O desempenho da RSSF implementada foi alto, com taxa de entrega de pacotes superiores a 86% em laboratório e 81% em campo. As curvas de calibração ajustadas para os quatro modelos de sensor apresentaram alta correlação (r>0,9) entre o sinal lido pelo sensor e a umidade do solo. Com relação ao monitoramento da umidade do solo, o desempenho da RSSF variou em função do modelo de sensor utilizado. Utilizando o sensor UFES, o desempenho da RSSF foi ótimo, enquanto com o sensor HL 69 o desempenho foi péssimo. A RSSF demostrou alto potencial para ser utilizada como ferramenta na tomada de decisão sobre o momento de irrigar. Palavras-chave: manejo da irrigação, sensor de umidade do solo, agricultura irrigada, calibração de sensor.

Made available in DSpace on 2018-12-20T13:24:44Z (GMT). No. of bitstreams: 1 tese_12438_Tese LAIS THOMAZINI 2018.pdf: 3770361 bytes, checksum: 686612ad99b8f637bb3bbd4e1530b952 (MD5) Previous issue date: 2018-08-29 A restauração florestal tem funções múltiplas na paisagem, dentre essas, recuperar os processos ecológicos, armazenar carbono e proteger os recursos hídricos. As florestas nativas desempenham papel fundamental na manutenção e estabilidade dos recursos hídricos e tem grande influência na criação de boas condições para a infiltração da água no solo. Apesar do reconhecimento de taxas mais elevadas de evapotranspiração em florestas, a probabilidade de que isso possa afetar as vazões dos cursos dágua não tem sempre sido reconhecida. Quando se pretende aumentar a produção de água de uma bacia hidrográfica pode-se referir ao aumento do escoamento anual ou do escoamento de base. Diante disto, o objetivo do estudo foi avaliar as alterações na disponibilidade hídrica ocasionadas pela posição das áreas com cobertura florestal, e localizar as áreas com maior potencial de produção de água. Os locais potenciais foram identificados por meio de um método desenvolvido a partir da integração da Avaliação Multicritérios (MCE) associada ao SIG (MCE-SIG), com posterior modelagem hidrológica. Duas etapas foram realizadas para identificar esses locais: a triagem das áreas com diferentes níveis de prioridade e a verificação dessas prioridades em um estudo de caso. O método foi aplicado para a bacia hidrográfica do Rio Itapemirim (BHPAIN) utilizando-se o modelo hidrológico DHSVM. O mapa prioritário foi obtido pela Combinação Linear Ponderada (WLC) e classificado em oito níveis de prioridade. Os resultados indicaram que na área de estudo há influência da posição da cobertura florestal no aumento da disponibilidade hídrica, mostrando a adequabilidade do método desenvolvido para a análise espacial do efeito da localização da floresta. O resultado para a BHPAIN foi um cenário que prioriza áreas mais elevadas, em especial aquelas ocupadas por pastagem. Os dados sugerem que para a BHPAIN a ampliação da cobertura florestal seja feita em até 25% nas áreas prioritárias indicadas para aumentar os serviços de regulação do fluxo de água. Palavras-chave: vegetação nativa, uso da terra, vazões.